static void saveimage(int num)
{
fz_image *image = NULL;
fz_pixmap *pix = NULL;
pdf_obj *ref;
char buf[32];
ref = pdf_new_indirect(ctx, doc, num, 0);
fz_var(image);
fz_var(pix);
fz_try(ctx)
{
/* TODO: detect DCTD and save as jpeg */
image = pdf_load_image(ctx, doc, ref);
pix = fz_get_pixmap_from_image(ctx, image, NULL, NULL, 0, 0);
snprintf(buf, sizeof(buf), "img-%04d", num);
writepixmap(ctx, pix, buf, dorgb);
}
fz_always(ctx)
{
fz_drop_image(ctx, image);
fz_drop_pixmap(ctx, pix);
pdf_drop_obj(ctx, ref);
}
fz_catch(ctx)
fz_rethrow(ctx);
}
/* Image specific methods */
static void
res_image_init(fz_context *ctx, pdf_document *doc, pdf_res_table *table)
{
int len, k;
pdf_obj *obj;
pdf_obj *type;
pdf_obj *res = NULL;
fz_image *image = NULL;
unsigned char digest[16];
fz_var(obj);
fz_var(image);
fz_var(res);
fz_try(ctx)
{
table->hash = fz_new_hash_table(ctx, 4096, 16, -1);
len = pdf_count_objects(ctx, doc);
for (k = 1; k < len; k++)
{
obj = pdf_load_object(ctx, doc, k, 0);
type = pdf_dict_get(ctx, obj, PDF_NAME_Subtype);
if (pdf_name_eq(ctx, type, PDF_NAME_Image))
{
image = pdf_load_image(ctx, doc, obj);
res_image_get_md5(ctx, image, digest);
fz_drop_image(ctx, image);
image = NULL;
/* Don't allow overwrites. */
if (fz_hash_find(ctx, table->hash, digest) == NULL)
fz_hash_insert(ctx, table->hash, digest, obj);
}
else
{
pdf_drop_obj(ctx, obj);
}
obj = NULL;
}
}
fz_always(ctx)
{
fz_drop_image(ctx, image);
pdf_drop_obj(ctx, obj);
}
fz_catch(ctx)
{
res_table_free(ctx, table);
fz_rethrow(ctx);
}
}
static void saveimage(int num)
{
fz_image *image;
fz_pixmap *pix;
pdf_obj *ref;
char buf[32];
ref = pdf_new_indirect(doc, num, 0);
/* TODO: detect DCTD and save as jpeg */
image = pdf_load_image(doc, ref);
pix = fz_new_pixmap_from_image(ctx, image, 0, 0);
fz_drop_image(ctx, image);
snprintf(buf, sizeof(buf), "img-%04d", num);
writepixmap(ctx, pix, buf, dorgb);
fz_drop_pixmap(ctx, pix);
pdf_drop_obj(ref);
}
static void saveimage(int num)
{
fz_error error;
fz_pixmap *img;
fz_obj *ref;
char name[1024];
ref = fz_new_indirect(ctx, num, 0, xref);
/* TODO: detect DCTD and save as jpeg */
error = pdf_load_image(&img, xref, ref);
if (error)
die(error);
if (dorgb && img->colorspace && img->colorspace != fz_device_rgb)
{
fz_pixmap *temp;
temp = fz_new_pixmap_with_rect(ctx, fz_device_rgb, fz_bound_pixmap(img));
fz_convert_pixmap(ctx, img, temp);
fz_drop_pixmap(ctx, img);
img = temp;
}
if (img->n <= 4)
{
sprintf(name, "img-%04d.png", num);
printf("extracting image %s\n", name);
fz_write_png(ctx, img, name, 0);
}
else
{
sprintf(name, "img-%04d.pam", num);
printf("extracting image %s\n", name);
fz_write_pam(ctx, img, name, 0);
}
fz_drop_pixmap(ctx, img);
fz_drop_obj(ctx, ref);
}
